On 09/29/2020 10:32 PM, John Pierce wrote: > do you have another computer, perhaps a Windows system, you can plug this > camera into to see if it works at all? > > On Tue, Sep 29, 2020 at 7:22 PM H <agents at meddatainc.com> wrote: > >> On 09/29/2020 10:01 PM, Bruce Ferrell wrote: >>> On 9/29/20 6:50 PM, H wrote: >>>> On 09/29/2020 09:09 PM, John Pierce wrote: >>>>> do other USB 3 (XHCI) devices work on this system ? >>>>> >>>>> On Tue, Sep 29, 2020 at 5:27 PM H <agents at meddatainc.com> wrote: >>>>> >>>>>> On 09/29/2020 02:11 PM, Bruce Ferrell wrote: >>>>>>> Try >>>>>>> >>>>>>> lsusb -v >>>>>>> >>>>>>> and >>>>>>> >>>>>>> sudo dmesg >>>>>>> >>>>>>> ... Be aware, systemd deals with udev and it may be malfunctioning >>>>>>> >>>>>>> >>>>>>> On 9/29/2020 10:30 AM, H wrote: >>>>>>>> Just installed the above USB webcam but it is not recognized by >> dmesg | >>>>>> grep usb, nor does Zoom recognize it. I was under the understanding it >>>>>> should not require a driver, or? >>>>>>>> I am running CentOS 7. >>>>>>>> >>>>>>>> Thanks. >>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> CentOS mailing list >>>>>>>> CentOS at centos.org >>>>>>>> https://lists.centos.org/mailman/listinfo/centos >>>>>>> _______________________________________________ >>>>>>> CentOS mailing list >>>>>>> CentOS at centos.org >>>>>>> https://lists.centos.org/mailman/listinfo/centos >>>>>> I'll bite, systemd and its interaction with udev is beyond my >> paygrade. >>>>>> How do I investigate this? >>>>>> >>>>>> _______________________________________________ >>>>>> CentOS mailing list >>>>>> CentOS at centos.org >>>>>> https://lists.centos.org/mailman/listinfo/centos >>>>>> >>>> Not sure I have any. I tried two different USB 3.0 connectors with the >> same result. >>>> Is there any way I can test this? >>> I just checked my C922 it's plugged into a USB2 port and works fine >>> >>> Try ANY usb device in your ports and see if it shows up in lsusb >>> >>> You may have a bad port >>> >>> >>> _______________________________________________ >>> CentOS mailing list >>> CentOS at centos.org >>> https://lists.centos.org/mailman/listinfo/centos >> I have tried three different ports, two USB-3 and one USB-2 port... >> >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> https://lists.centos.org/mailman/listinfo/centos >> > I just did - before seeing your post... I tried it on a Dell laptop also running CentOS 7 and it worked fine. Besides the difference in hardware, the OS on the laptop has not been updated for a number of months, possibly not since late last year, while the OS on the desktop is completely updated.